iPod Touch Not Connecting To iTunes On Macbook Computer.

The iPod is an older generation, but it still works. I want to reset it to factory settings, but it wont connect to my iTunes on the laptop. I would restart it from the iPod itself, but it gives me a notification saying "Your iPod touch could not be activated because the activation server cannot be reached. Try connecting yout iPod touch to iTunes to activate it, or try again in a couple of minutes"

Please help. 😢